EP 0031503 B1 19850807 - MAGNETIC BRUSH DEVELOPMENT APPARATUS
Title (en)
MAGNETIC BRUSH DEVELOPMENT APPARATUS
Publication
Application
Priority
- JP 180878 A 19780111
- JP 2956978 A 19780315
Abstract (en)
[origin: EP0031503A2] A magnetic brush development apparatus in which a developer containing magnetic powder therein is attracted to a non-magnetic support member having a magnet (22) therein, and said developer attracted to said non-magnet support member is brought into contact with a latent image bearing member (23) for developing said latent electrostatic image; said magnet has substantially one magnetic pole portion capable of producing a magnetic field having a plurality of peaks in the intensity of said magnetic field in said development section, one magnet (11, 12, 13, 16) including a recess portion being disposed adjacent said non-magnetic support member (10).
IPC 1-7
IPC 8 full level
G03G 15/09 (2006.01)
CPC (source: EP)
G03G 15/0921 (2013.01)
Citation (examination)
- DE 2545494 A1 19760422 - CANON KK
- DE 2452879 A1 19760520 - HITACHI METALS LTD
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0031503 A2 19810708; EP 0031503 A3 19810909; EP 0031503 B1 19850807; CA 1135046 A 19821109; EP 0003134 A1 19790725; EP 0003134 B1 19811014
DOCDB simple family (application)
EP 80107642 A 19790111; CA 319418 A 19790110; EP 79100081 A 19790111